Finding the Third Proportional to 61.50 and 90.94

Step by Step Solution

1. Step 1: Write the proportion equation
   61.50 : 90.94 = 90.94 : x
2. Step 2: Convert to fraction form
   61.50/90.94 = 90.94/x
3. Step 3: Cross multiply
   61.50x = 90.94 × 90.94
4. Step 4: Simplify right side
   61.50x = 8,269.63
5. Step 5: Solve for x
   x = 8,269.63/61.50
6. Step 6: Final answer
   x = 134.47